What am I looking at?
Visual recognition
Straight adapter with a screw-down compression cap, often with a sidearm, that tightens around the shaft.
03-04
Rotating hemostatic valve
Inline hemostatic valve
Three-panel learning framework
Recognition, context, and distinction
What does it do, and where will I see it?
Use & procedural context
Creates an adjustable hemostatic seal around a guidewire or catheter while preserving the ability to advance, withdraw, and rotate the device. It is commonly incorporated into angiography, embolization, venous intervention, and sheath-based workflows.
What most clearly distinguishes it from similar devices?
Key distinctions
The compression cap seals around a guidewire or catheter while still permitting controlled translation and rotation, distinguishing it from a simple stopcock that redirects fluid flow between ports.